Civil aviation provides an essential transportation network that connects the world and
supports global economic growth. To maintain these benefits while meeting environmental …

Aircraft-produced contrail cirrus clouds contribute to anthropogenic climate change.
Observational data sets and modelling approaches have become available that clarify …

Contrail cirrus account for the major share of aviation's climate impact. Yet, the links between
jet fuel composition, contrail microphysics and climate impact remain unresolved. Here we …

Two airborne field campaigns focusing on observations of Arctic mixed-phase clouds and
boundary layer processes and their role with respect to Arctic amplification have been …

Airborne observations over the Amazon Basin showed high aerosol particle concentrations
in the upper troposphere (UT) between 8 and 15 km altitude, with number densities …

The southern part of South America and the Antarctic peninsula are known as the world's
strongest hotspot region of stratospheric gravity wave (GW) activity. Large tropospheric …

The strong reduction of air traffic during the COVID-19 pandemic provides a unique test case
for the relationship between air traffic density, contrails, and their radiative forcing of climate …

In order to reduce aviation's CO 2 emissions and comply with current climate targets, the
European Union plans a mandatory quota of 2% sustainable aviation fuel (SAF) by 2025 …

We describe the historical evolution of the conceptualization, formulation, quantification,
application, and utilization of “radiative forcing”(RF) of Earth's climate. Basic theories of …

The WeCare project (Utilizing We ather information for C lim a te efficient and eco efficient
futu re aviation), an internal project of the German Aerospace Center (Deutsches Zentrum für …